Dynamics 365 Business Central: Newly added standard extensions missing in upgraded environments (Uninstalled apps will now remain uninstalled)

Hi, Readers.
Today I’d like to share a problem that some partner recently encountered in Business Central 2026 release wave 1 (BC28), newly added standard extensions is missing in upgraded environments.

I first noticed this when testing Business Central 2026 release wave 1 (BC28): Storing Document Attachments outside the database (No customization) – See benefits of external storage support for document attachments.
Let’s take a look at the details.
If you do not see any records when assigning the document attachments scenario.

Please check if External Storage – Document Attachments is already installed in your environment. In my tests, this extension is not automatically installed in upgraded environments.

We have to use the direct URL to install it. In address bar, append following to the base business central URL. More details: Dynamics 365 Business Central: Can we uninstall Microsoft (First-party) extensions and how to install them back?

?aid=FIN&page=2503&filter=%27ID%27%20IS%20%27<App ID>%27&signInRedirected=1

Then replace part with the AppSource Extension’s App Id. For example,

?aid=FIN&page=2503&filter=%27ID%27%20IS%20%275f2e93a0-6083-4718-b05a-7ac89be5644d%27&signInRedirected=1

Great.

Done.

Let’s get back to the topic. Below is the environment upgraded to BC28 (Searched for “External”).

Below is the newly created BC28 environment. Two more.

Why? This was announced by Microsoft at Directions EMEA 2025 almost six months ago, uninstalled apps will now remain uninstalled.
Source: We listened to your feedback! Uninstalled apps will now remain uninstalled.✨

That’s the reason, and yes, this will also affect new Microsoft standard extensions. Microsoft will add these extensions to the AppSource, so you can install them with just one click.
More details: Business Central 2024 wave 2 (BC25): Microsoft AppSource apps (In-client AppSource gallery) feature will replace the Extension Marketplace (Deprecation of Extension Marketplace)

f it hasn’t been published to AppSource yet, we have to use the direct URL to install it. In address bar, append following to the base business central URL. More details: Dynamics 365 Business Central: Can we uninstall Microsoft (First-party) extensions and how to install them back?

?aid=FIN&page=2503&filter=%27ID%27%20IS%20%27<App ID>%27&signInRedirected=1

Then replace part with the AppSource Extension’s App Id. For example,

?aid=FIN&page=2503&filter=%27ID%27%20IS%20%275f2e93a0-6083-4718-b05a-7ac89be5644d%27&signInRedirected=1

PS: Dynamics 365 Business Central: Can we uninstall Microsoft (First-party) extensions and how to install them back?

I hope these insights into the causes and solutions prove helpful for your reference.

END

Hope this will help.

Thanks for reading.

ZHU